If (1, -1, 2) and (2, 1, 1) are points of a diameter of the sphere x² + y² + z² + 2ux + 2vy + 2wz - 1 = 0, then what is u + v + w equal to ? - NDA Mathematics 2024 (I)

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

An urn contains one black ball and one green ball. A second urn contains one…

What is the most probable number of successes in 10 trials with probability of success…

If (1, -1, 2) and (2, 1, 1) are points of a diameter of the sphere x² + y² + z² + 2ux + 2vy + 2wz – 1 = 0, then what is u + v + w equal to ?